The European Union (EU) has 24 official languages, of which three – English, French and German – have the higher status of "procedural" languages of the European Commission. Irish previously had the lower status of "treaty language" before being upgraded to an official and working language in 2007. However, a temporary derogation was enforced until 1 January 2022. The three procedural languages are those used in the day-to-day workings of the institutions of the EU. The designation of Irish as a "treaty language" meant that only the treaties of the European Union were translated into Irish, whereas Legal Acts of the European Union adopted under the treaties did not have to be. Luxembourgish and Turkish, which have official status in Luxembourg and Cyprus, respectively, are the only two official languages of EU member states that are not official languages of the EU. In 2023, the Spanish government requested that its co-official languages Catalan, Basque, and Galician be added to the official languages of the EU.

The Greek alphabet has been used to write the Greek language since the late 9th or early 8th century BC. It is derived from the earlier Phoenician alphabet, and was the earliest known alphabetic script to have distinct letters for vowels as well as consonants. In Archaic and early Classical times, the Greek alphabet existed in many local variants, but, by the end of the 4th century BC, the Euclidean alphabet, with 24 letters, ordered from alpha to omega, had become standard and it is this version that is still used for Greek writing today.